McDonald's customers suspected something amiss when one guy pulled out his whopper. They knew for sure when he began partaking of fur burger. The upshot was four people trying to make an adult movie in a fast food outlet ended up getting arrested, says Friday (5/2). Arrested in the case earlier this month for indecent exposure and obstruction of business were Kunikazu Ishii, 52, the director, Nahoko Shimada, 21, an actress and dental nurse, and actors Yuya Ochiai, 29, and Makoto Nishizumi. Saitama Prefectural Police say the four spent about 30 minutes one afternoon in January this year filming an adult movie in the McDonald's Higashi Matsuyama Itoyokado outlet in Higashi Matsuyama, Saitama Prefecture. They were allegedly caught after another customer called the police and told cops what was supposedly going on. "(Shimada) came into the restaurant holding hands with Ochiai. But Ochiai didn't look the type good enough to pick up a woman like her, so I thought something fishy was going on," a customer in the store at the time of the incident tells Friday. "It was even more suspicious because there was one young woman surrounded by all those much older guys." The group apparently took up a corner counter not easily visible to serving staff and went about their purportedly pornographic proclivities. Ochiai apparently spent the time with his hands up Shimada's skirt as he displayed his deft handiwork, Ishii did the filming and Nishizumi acted as a barrier and barked out orders to participants -- so the cops say, anyway. When police did arrive on the scene, the group had allegedly been filming inside the restaurant for about half an hour. Each of the four suspects was led away individually and taken to a nearby cop station in a different patrol car.